Latch.



No. 657,345. Patented sept. 4, |900.

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LATCH.

(Application filed Apr. 18, 1900.)

(No Model.) g

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UNITED STATES PATENT OFFICE.

WILLIAM F. HERDRIOHL OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO i SIMON LIOHTENSTEIN, OF SAME PLACE.

LATCH.

SPECIFICATION forming part of Letters Patent No. 657,345, dated September 4,1900.

v Application filed April 18, 1900. Serial No. 13,295. (No model.)

To all whom it may concer-n:

Beit known that I, WILLIAM F. HERDR1cH,a ,citizen of the United States, residing at Chicago, in the county of Cook and State of Illi-l nois, have invented certain new and useful Improvements in Door Latches or Oatches,of which the following'is a specification.

This invention relates to latches or catches which are reciprocatingly retracted and ad 1o vanced by the partial rotation or turning of a steln through the medium of an outside knob or handle, and has for its object to give the necessary retracting and advancing of the bolt by a direct draw or pull on the operating-stem instead of a partial rotation or turning of the stem, thereby improving the movements of the bolt in use; .and the invention consists in the construction and combination of parts hereinafter described and claimed.

In the drawings illustrating the invention, Figure 1 is an elevation showing a portion of the edge 'of a door with the latch or catch of the .invention applied thereto; Fig. 2, a longitudinal section through the case containing the operative parts of the'latch or catch; Fig. 3, a transverse section on line 3 of Fig. 2,with the parts as in Fig. 2; Fig. 4, a plan view of the inner face of the cover of the case, showing oneof the retracting-dogs in place; and Fig. 5, an elevation showing the inner face of the body of the case with a retracted dog and the b'olt in place.

The casing for the reception of the bolt and the operating or retracting dogs and the return-spring has a main or body portion,with a face-plate A and end and side walls forming a chamber in which is located the operating parts, and this chamber after the parts are inserted hasits open side closed bya faceplate or cove] B. The face-plateA carries a reti-acting dog or tumbler C, formed to have a neck c, terminated in an ear c,which neck is passedthrough an opening or slot a in the face-plate for the ear to come in alinement with ears c' on'the exterior of the face-plate, so that a pivot c2 can be passed through the alined ears and pivotally mount the `dog or tumbler on the faceplate, so as to be free to oscillate or swing. The dog or tumbler has an engaging or contact edge c2 and a curved edge c5 and a heel or head c4 for engagement with the bolt of the latch or catch. The faceplate or cover B carries a retracting dog or tumbler D, which has a neck d, terminating in an ear d', which neck is passed through an 55 opening or slot b in the face-plate or cover for its ear to come in alinement with ears b on the exterior of theV face-plate, so that a pivot h2 can be passed through the alined ears and pivotally mount the dog or tumbler 6o on the face-plate or cover. The dog or tumbler D has an engaging or contact face d2 and an edge d3, which is cut away as compared with the edge c3 of its companion dog or tumbler, and has'a heel or head d4 foren- 65 gagement with the bolt of the latch or catch. As shown, the tumbler C when the latch or catch is in the door is above the dog or tumbler D.

The stemE for moving the dogs or tumblers 7o in the retracting'direction is round in crosssection and is provided with a stud or projection e to coperate with the dog or tumbler C by engaging the edge e2 and with a stud or projection e' to cooperate with the dog or 75 tumbler D by engaging the edge d2, and when the rparts are together and normal the studs or projections e and e have the dogs or tumblers located between them, as shown in Fig.

2. The face-plate A has a slot or opening e2 8o to permit the withdrawal or recession of the stud e, and the face-plateor cover B has a slot or opening e3 to permit the withdrawal of the stud e in the direct or straight pull of the stem to retract thebolt ofthe latch or catch. rlhe stem is inserted through an opening e5 in each face-plate, and in order to permit of the insertion of the stem in the arrangement shown the face-plate or cover B has a slot or opening e4, standing at right angles to the -slot 9o or opening e3, so that the stem Ecan be turned for the stud or projection e to be passed through the slot or opening e4 until the limit of its insertion is reached, at which time both studs e and e will be withinthe chamber of the case, so that the `stem can be turned and bring the studs in line with their respective recesses e2 and e3 to permit of the necessary straight-line movement of the stem to operate the dogs or tumblers and retract the bolt.

The bolt F has an outer end or catch portion F' of the usual construction and at its IOO inner end hasa lateral extension Fagaimst which the kheels or heads of the :dogs-@r *tumblers Contact, so that with the vibration or Swing of either dogV or tumbler in the proper direction the-bolt will be retracted and its catch disengaged. The bodyof the bolt.asi shown, is cnt awayat fro permit. ofthe inser j tion of the operating-stem Land Aon the Voppo-i site side from the cu t-away portion hasa rearcessed to receivetherod f and permit of the retraction of the rod with vthe retraction-ot'` the bolt. The springf2 serves to return the bolt'after retraction 'tonorrna'l ip'osition with I the catch gend F projected.

ment being by .means ofscrews or otherwise as usual in .att-aching such parts. Eachdra-W or pull E', as show-n, has at its extreme end finger-pieces, but could be=otherwiseiformed sojlong as the construction was one to fury nish a clasp for the fingers or 4hand toeXert` the required force to recede thestem in adi- As shown, ahandle is'providedon each side of the door'for useand'eachlh'andlel` consists lof an attaching-plate Gea grasping; portion or handle proper, Gand connectingpieces G2, the plate being secured to the face,1 of the door by screws or in anyother usualor The stem E extenidsonl each side through the door and ;the;p1atejG, and thed raw'or pull for each projected end of rect line.

well-known manner.

the stem is located in the arrangement shown within the handle or grasping :portion 7LG'.: Thecatch is to be inserted in the edge of :th-e'i door in the `usual manner of 'inserting Inortise-locks, and, 'as shown, a .-mortise-lock sis provided inserted in the edge of the door The dogs-or tumblers are mounted 'on ltheir respective face-.platesand thezboltisproperly placed in the chamber of the casing, after` which the face-plate lor cover `B is screwed or"` otherwise fastened in place, inclosing the dogs or tumblers and the bolt,-With its reholes e5, but `of largerdiameter.

spectiveslots e2 and e3 topermitthe'straightline recession and return of theistem ineither The plates G, if'a'ha'ndle is used I; on each side of the door, are located in place, l With-:the-stem end projecting on each side. l

direction.

The pulls or draws E are then attached to the ends of .the stem, .one ou ,each`renjd, completing theassemblingiand attachment of the parts of the latch or catch ready for use. The pulls E have their body orshanks each of a rectangular or other suitable shape in crosssections, .which will prevent the turningof the 4'stem yin usel,#and for this purpose ea'ch'gu'ide- :pla'te is vprovided -with a rectangular or othershaped opening corresponding to the .fsb-tpe of the body or shank of the pull, so 'that the pulls and stem will be held against turning and have a direct-line end thrust or movement, and, Aif desired, 7the inner ends of 'thebo'dyror shank of the pulls maybe made 'to serveas'stops ito limit the extent of end thrust ormovement of the stem, so as to pre- `vent any accidental `Wi-t'hdrfa-'viral Iof a stud Ain 'I operation. Each projecting end-.of the stem E-hassecured thereto a'draw or `pull E', ,-theattachv =In use afstraight-line movement of the ste Ain thedirection to 4`carry the Astud -ei nward causes such stud yto bear Vagain-st theedge c2 of -the dog C and swing -or turn such `dog :on

its pivot .for its yheel or 4head --clto be receded e and .by the-engagement thereof with the end gagement with the 4endfor projection F2l to retract the 4fbolt F., and 4with .the release fof the .draworpull onthatfeud of .the boltthezsprifng `l f `will .tact and .return the parts :and rthe .bolt

to normal position. lItzwill-th'us :befseengthat -a-straight-linem'ovement-of the stem Iin either direction endwise Voperates ito move the 'dog or tumhler and retract :the bolt, which ,is `returned'to normal position -bylthe springgthus' enabling the bolt to `be retracted fromeither side bysimply drawin g the `stem ina straight line. llhedog ortumbler-C being above the dog or tumbler D has the longeststudfor projection e :tocoact therewith, and in 4order toepermit fthe requisite inward movement fof the stud ythe dog or tumbler rD ,has the {cut-away facedgfandthis ffaceand the iface cg-of kthe dog` C provide sufficient Iclearance-space for both dogs or tumblers by which each' can swing orturn .fonv `itspivot .Wththevmovement required to retract Vthe bolt..

I claimy ,1. In aldoor latch orcatch, the'oombination of a casing, two pivoted dogs or tumblers each mounted `on the casing, :a `reciprocating stem engaging Aboth dogs or tumblers, and a ;re tractableboltin-the casing contacted bygboth dogs or tumblersand retracted bythe `'movement of :a dog or .tumbler .in one direction `from a straight draw'or pull on Athe stem in either direction endwise, substantially vas described. Y

IOO

IIO

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or pull in one direction to move one dog o1" tumbler and for a straight draw or pull in the opposite direction to move the other dog or tumbler and have the movement of each dog or tumbler independent of the other, sub-V stantially as described.

3. In a door latch or catch, the combination of a casing having two face-plates, a pivoted dog or tumbler mounted on each face-plate, a reciprocating stem engaging each dog or tumbler and operating fora straight draw or pull in one direction to move one dog or tumbler and have a straight draw or pull in the opposite direction to move the other tumbler and have the movement of each dog or tumbler independent of the other, and a retractable bolt engaged by both dogs or tumblers for the movement of either dog or tumbler in one direction to retract the bolt, substantially as described.

' 4. In a door latch or catch, the combination of a casing having two face-plates, a pivoted dog or tulnbler mounted on each face-plate, a reciprocating stem engaging each dog or tumbler and operating for a straight draw or pull in one direction to move one dog or tumbler and have a straight draw or pull in the opposite direction to move the other dog or tumbler and have the movement of each dog or tumbler independent of the other, a retractable bolt engaged by both dogs or tumblers for the movement of a dog or tumbler in one direction to retract the bolt, and a spring for'returningthe bolt to normal posi-V WILLIAM F. HERDRICH.

Witnesses:

THOMAS A. BANNING, i THOMAS B. MCGREGOR. 

